Shameless plug but since you asked ... CodeApprove (https://codeapprove.com https://codeapprove.com) is probably the closest thing you can get to Critique on Gi

Shameless plug but since you asked ... CodeApprove (https://codeapprove.com https://codeapprove.com) is probably the closest thing you can get to Critique on GitHub. It doesn't help with the Piper/CitC/Code Search parts though, and I agree those were excellent.